LifeSource Vitamins L-Theanine — 200 mg, 60 Veg Capsules — Promotes Relaxation & Calm Focus*
LifeSource Vitamins L-Theanine delivers 200 mg of pure L-Theanine in a convenient veg capsule. Traditionally used to promote relaxation without drowsiness, support calm focus, and help manage everyday stress. Made in FDA-registered, GMP-certified facilities and third-party tested for identity, potency, and purity.*
✅ Family-Owned Since 1992
✅ Made in the USA
✅ Third-Party Tested
⭐ Trusted by customers nationwide with over 7,000 5-star reviews
Key Benefits
- Promotes relaxation without drowsiness*
- Supports calm focus and mental clarity*
- Helps manage everyday stress*
- Supports overall mood and well-being*
Key Ingredients
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L-Theanine (200 mg) — Amino acid from green tea traditionally used to promote relaxed alertness and calm focus.*
Who May Benefit Most
- Adults seeking calm focus and relaxation without drowsiness*
- Those managing everyday stress and tension*
- Individuals looking to support mental clarity and attention*
- People preferring convenient veg capsules*
Independently 3rd-Party Tested
Identity • Purity • Potency • Label Accuracy
Produced in FDA-registered, GMP-certified facilities.
See Our 3rd Party Testing →
Why Trust LifeSource Vitamins?
- Family-Owned and Operated Since 1992
- Serving Customers Nationwide Since 1992
- More Than 7,000 Verified 5-Star Reviews (4.8–4.9 average)
- Made in the USA in FDA-registered, GMP-certified facilities
- Independently Third-Party Tested for Identity, Purity, Potency & Label Accuracy
- Non-GMO • Gluten-Free • Family-Owned Company
Our Quality Promise
Since 1992, LifeSource Vitamins has remained committed to providing high-quality supplements made with carefully selected ingredients and rigorously tested for identity, purity, potency, and label accuracy. As a family-owned company, we believe you deserve transparency, consistency, and products you can trust to support your wellness goals.
Wellness Research & Education — LifeSource Vitamins evaluates wellness research and educational resources from respected organizations including the National Institutes of Health (NIH), Mayo Clinic, Harvard Health, Johns Hopkins Medicine, Cleveland Clinic, Mount Sinai, and other trusted health resources.
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L-Theanine is commonly included in formulas promoting relaxation without drowsiness — with research on alpha brain wave activity associated with calm alertness.
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Supports calm focus and mental clarity — studies explore its role in attention and performance, especially when combined with caffeine.
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Helps manage everyday stress — human trials suggest benefits for subjective tension and stress response.
Suggested Use
Take one (1) capsule one to two times daily, preferably between meals, or as directed by your healthcare professional.*
Product Specifications
• Serving Size: 1 Veg Capsule (200 mg L-Theanine)
• Servings Per Container: 60
• Form: Veg Capsules
• Free From: Non-GMO, gluten-free, vegan-friendly*
• Quality: Third-party tested for identity, potency & purity
Often Paired With
Customer Reviews
This product is backed by LifeSource Vitamins' commitment to quality and customer satisfaction, supported by over 7,000 verified five-star reviews across our product catalog.
— Verified LifeSource customers.
FAQ
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How does L-Theanine work? It promotes alpha brain wave activity associated with relaxed alertness.*
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Can I take it with caffeine? Yes — many people use it alongside caffeine for calm focus.*
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Is it non-drowsy? Yes — it promotes calm without causing drowsiness.*
Recommended Reading
Phone: 800-567-8122 | Email: info@lifesourcevitamins.com
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Promotes relaxation and calm focus with 200 mg L-Theanine. Third-party tested, Family-Owned & Trusted Since 1992.*
